Unit 3 Could you please clean your room？ part B 课件1.ppt

1、Unit 3,Section B Period 1,Could I stay out late?,Could I use the car?,Sorry, you cant. I have to go to a meeting.,Could I get a ride?,No, you have a test tomorrow.,Yes, you can.,Grammar,1. Sweep the floor, Peter!,2. Can you sweep the floor, Peter?,3. Could you please sweep the floor?,Which is the mo

2、st polite one?,Could you please clean your room? Yes, sure. Could you please do the dishes? Sorry , I cant . I have to do my homework. Could I go to the movies? Yes, you can. Could I use the car? No, you cant . I have to go out.,could,can 的过去时,礼貌的请求,提出建议,推测,I could run fast when I was a child.,Could

3、 you help me?,You could talk to your teacher.,He couldnt be at the school then.,Could you please clean your room?,你能打扫一下你的房间吗？,在表示请求帮助或请求允许的疑问句中，我们常用could代替can， 以表示礼貌、委婉或不确定的语气，而can 则不具有这些语气。这样用时，不能把could 看作为can 的过去式。,Could you please sweep the floor? 请你好吗?,这里的could 不是表示一般的过去式,而是用来表示委婉地提出请求。,Could y

4、ou please do sth?,1. could表示请求，语气委婉，显得有礼貌 Could you please clean your room? 你可以打扫你的房间吗？ 肯定回答：Yes, I can.是的，我可以。 Yes, sure. / Yes, of course. 否定回答：Sorry, I cant. I have to do my homework. 对不起，我不得不做作业。 另外Would you mind doing sth.?也可表示请求 Would you mind cleaning your room? 你介意去打扫你的房间吗？ No. Id like to. 不

5、，我很乐意。,2. could表示请求许可，希望得到允许。 Could I go to the movies? 我能去看电影吗？ 肯定回答：Yes, you can. Yes, sure. 当然可以。 否定回答：No, you cant. 不，不行。,Now make sentences using “could” and the following phrases. （1）go to the movies去看电影 （2）stay out late在外面呆得很晚 （3）use the car使用汽车 （4）get a ride去骑车 （5）use your computer使用你的电脑 （6）

6、borrow some money借些钱 （7）invite my friends to a party 邀请我的朋友参加晚会,（8）go to the store去商店 （9）use your CD player使用你的CD播放器,3. could与can的区别 could与can都是情态动词，could是can的过去式。二者都可用于表示请求，但是用法稍有不同。 can表示一般性的请求，语气随便，常用于熟人之间或长辈对辈、上级对下级的场合； Can you tell us your story, Tony ? 你能给我们讲讲你的故事吗，Tony？,could表示有礼貌的请求，语气委婉，常用于

7、非熟人之间或晚辈对长辈、下级对上级的场合。 Could you tell us if it snows in winter in Australia? 请告诉我们，澳大利亚冬天下雪吗？ Sure . 当然可以。,从各题所给的三个选项中,选择一个最佳答案。 ( )1. Excuse me, could you help me with the heavy box? _. A. Yes, I do B. It doesnt matter C. Of course,C,( )2. Could I have your name, please? _. A. Sorry, Im not B. Yes, you could C. You can call me Jenny ( )3. Could I use your bike? Sure, you _. A. might B. can C. should,C,B,( ) 4. Could you please _ me look for my dog? A. help B. helped C. to help ( ) 5. My brother is _ his homework